baber/WOPTO huggingface dataset:
Patent GB-1338804-A (GB)
Title: Apparatus for transmitting signals
IPC: G08C19/22
Filed: 1971-09-23
Abstract: 1338804 Digital to analogue converters SONY CORP 23 Sept 1971 [26 Sept 1970] 44487/71 Heading G4H [Also in Division H3] A signal transmitter comprises: a first transistor 2 coupled between a power supply 1 and an oscillator 7; a time constant circuit 9, 10, 11, 12 coupled to the transistor 2 by switches 3, 4, 5 each of which, when actuated, provides a different time constant; and a second transistor 6 coupled between the time constant circuit and the oscillator, so as to control the oscillator signals. The signals are in the form of bursts of oscillations, the burst duration being determined by the selected time constant. Actuation of one of the switches turns on transistor 2 to energize oscillator 7 and allows capacitor 12 to commence charging. When the voltage across it reaches a predetermined level transistor 6 turns on to switch off oscillator 8. Release of the actuated switch then allows capacitor 12 to discharge. In one embodiment, Fig. 1 (not shown), once the charge on capacitor 12 has fallen sufficiently for transistor 6 to cut off the only discharge path is through resistors 9, 10, 11, and in order to speed up discharge three modifications are described. In a first, Fig. 4 (not shown), an additional switch (21) is arranged  to short out capacitor 12 whenever the switches 3, 4, 5 are all open. In a second modification, Fig. 5, a capacitor 24 is charged from supply 1 when transistor 2 is conductive. When transistor 2 is turned off by releasing the actuated switch, the charge on capacitor 24 turns on transistor 26 to hold the base emitter diode of transistor 6 forward biased to provide a discharge path for capacitor 12. In a third modification, Fig. 8, when transistor 2 is turned off, transistor 29 also goes off, and the rise in potential at its collector is fed via differentiating circuit 30, 31 to turn on transister 32 and thus short circuit capacitor 12.
Patent GB-1082320-A (GB)
Title: A method of preparing phenol-formaldehyde resins
Inventor: AKUTIN MODEST SERGEEVICH
IPC: C08G8/10
Filed: 1964-11-02
Abstract: A phenol/formaldehyde resin is prepared by interacting phenol and formaldehyde in the presence of HCl in a mixture of water and an immiscible organic solvent.  The aqueous phase may contain 2-3 mole/l. of formaldehyde and 13-18% HCl and the organic phase 4-6 mole/l. of phenol.  The reaction may be at 15-80 DEG  C. Solvents specified are benzene, toluene, CCl4, di- and tetrachloroethane and white spirit.
Patent GB-445671-A (GB)
Abstract: 445,671. Indicating variable information. DAY, H. A., 1, Honduras Street, Old Street, London. Aug. 13, 1935, No. 22788. [Class 118 (i)] A " fixture list " for football and other sports comprises a pair of indicating cards 4, 5 adapted to slide in an envelope 1 having open ends and to display at apertures 9, 8 therein dates and selected teams registering against lists of teams marked on the envelope. The cards bear data on both sides, and the envelope may have apertures on the front only or on front and rear. The envelope may be folded about a centre line C into a small compass.
Patent GB-1127937-A (GB)
Title: Improvements in or relating to coat hangers
IPC: A47G25/14
Filed: 1966-10-06
Abstract: 1,127,937. Garment hangers. R. MAINETTI, G. MAINETTI, L. MAINETTI, and M. MAINETTI [trading as F.M. F. LLI MAINETTI DI MAINETTI ROMEO & CO. S.N.C.]. No. 6 Oct., 1966 [8 June, 1966], No. 44662/66. Heading A4U. A name plate i is permanently secured in an oval region formed at the apex of the yoke a of a plastics garment hanger by a curved rib integrally connected to upper and lower walls of the yoke, the top of the plate being pressed under the upper wall after a tab h has been engaged in a recess in the lower wall.
Patent GB-1014034-A (GB)
Title: Improvements in or relating to a device for regulating the flow of floating material
IPC: B65G53/46
Filed: 1961-12-14
Abstract: 1,014,034. Separating solids. "ELFA" APPARATE-VERTRIEBS-G.m.b.H. Dec. 14, 1961 [Jan. 16, 1961], No. 44775/61. Heading B2H. In a device for regulating the flow of floating material, such as sugar beet, conveyed in a water channel to a processing plant, a wheel having a hub rotatable about an axis transverse to the direction of the floating material has a plurality of helically inclined partitions formed by rods 2 and forming pockets 1 to regulate the flow of the floating material.
Patent GB-1204855-A (GB)
Title: Improvements in or relating to clutching mechanisms
Inventor: LEWIS JOHN
IPC: F16D23/06
Filed: 1966-10-10
Abstract: 1,204,855. Positive clutches. ROOTES MOTORS Ltd. 9 Oct., 1967 [10 Oct., 1966], No. 45135/66. Heading F2C. In the balked, frictionally synchronized positive clutch of Specification 1,159,023, wherein a dog clutch sleeve 19 is axially slidable on a hub 17 into engagement with a dog clutch member 14, and a coned synchronizing ring 21 having limited circumferential movement with respect to the sleeve 19 is frictionally engageable with the clutch member 14, and in which axial movement is initially transmitted from the sleeve 19 to the coned ring 21 by a spring ring 30 received in a channel 29 at the base of an internal annular recess (28) of the sleeve 19 (Fig. 3, not shown) and in notches 31 in plates 25 fast with the ring 21, the sleeve 19 is directly held in its engaged positions (Fig. 5) by the spring ring 30 which enters spaced grooves 50, 51 in the hub 17, thereby reducing wear on the sleeve and selector forks (not shown) through which the holding force in prior arrangements is normally applied. Pre-synchronous balking is (as in Specification 1,159,023) by balls (or rollers) (36), Fig. 2 (not shown), which are held in the plates 25 on the ring 21 and are circumferentially moved by frictional drag on the ring 21 to engage behind dog tooth end faces in the recess (28) of the sleeve 19 to balk axial movement of the latter until synchronization when the balls are radially inwardly cammed by the sleeve 19 to move down ramps (38) of shallow V-recesses in the hub 17 into non-baulking positions opposite tooth spaces of the sleeve 19. On synchronization, the spring ring 30 is expanded and passes over the plates 25. The arrangement shown is a double clutch between a shaft 12 and change-speed gears 10, 11.
Patent GB-1397709-A (GB)
Title: Shrink-film wrapping and packaging
IPC: B29C65/22
Filed: 1973-09-28
Abstract: 1397709 Packaging machines TETRA PAK INTERNATIONAL AB 28 Sept 1973 [3 Oct 1972] 45492/73 Heading B8C In a method of shrink-wrapping articles 1, groups of the articles are wrapped in an open sleeve of plastics film formed from opposed webs 5, 7 heat-sealed together by dies 8, 9, the film being shrunk as the wrapped articles pass through heating tunnel 13, the sealing dies including knives to form one or more perforation lines in the film defining one or more tear-strips. Alternatively, these perforations are formed before the webs are sealed together.
Patent GB-1081150-A (GB)
Title: Novel alkadienyl silanes and polysiloxanes and method of preparing the same
IPC: C07F7/18
Filed: 1965-10-28
Abstract: Novel silanes of the general formula <FORM:1081150/C3/1> wherein R is a monovalent halogenated or unsubstituted hydrocarbon radical, R1 is H or halogen, X is a hydrolysable group and a is 2 or 3, and siloxanes derived therefrom which comprise units of the formula <FORM:1081150/C3/2> are prepared by reacting a chlorosilane of the formula R3- aSiHCla where R and a are defined as above, with isopropenyl acetylene or a derivative thereof capable of reacting with SiH bonds in the presence of a catalyst to give the monomer wherein X is halogen, and if required, hydrolysing the monomer to the siloxane. Other specified X groups are acyloxy, amino, alk- or aryloxy, and may be introduced by replacement of the halogen, using conventional methods.  Specified derivatives of isopropenylacetylene are 2-chloro-, 2-bromo- and 2-iodo- 1-isopropenyl acetylene.  Any catalyst suitable for addition of C­C to SiH may be used, e.g. chloroplatinic acid (preferred), ruthenium chloride or K chloroplatinate.  Reaction may be effected under a nitrogen atmosphere at about 45 DEG  C. for 1-5 hours, the reaction mixture then being allowed to stand for 10-20 hours before distilling off the product.  The siloxanes produced may be cyclic or linear, and may contain up to 15 siloxane units.  The siloxanes may also be prepared by reacting Si-H containing siloxanes with the isopropenyl acetylene compound, under like catalytic conditions.
Patent GB-1502758-A (GB)
Title: Gas insulated electric cable
IPC: H01B7/00
Filed: 1976-11-03
Abstract: 1502758 High voltage cable KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 3 Nov 1976 [3 Nov 1975] 45717/76 Heading H1A A high voltage cable insulated by gas, e.g. sulphur hexafluoride, has an inner conductor comprising a core of an alkali metal, e.g. sodium, an alloy thereof, or two or more alkali metals inside a sheath 2 of thermoplastic or elastomeric material, e.g. polyethylene, and a corrugated metal tube 3 surrounding the sheath and core; an outer metallic sheath tube 7 preferably with a thermoplastic covering 8 is coaxially spaced from the inner conductor. Tube 3 may be made from a welded copper tape and surround sheath 2 with clearance, the clearance containing an inert gas. Sheath 2 may contain soot or metal to increase its thermal and electrical conductivity. A conductive layer may be provided on sheath 2. The outer sheath 7 may, as shown, be corrugated and flexible to allow winding on drums or it may be rigid, in which case it is conveyed to the site in short lengths. In a further form the outer sheath is formed as two half shells. The inert gas in sheath 3 can be used to monitor the tightness of the sheath.
Patent GB-1024019-A (GB)
Title: Chart reading and recording apparatus
Inventor: BOYLE ARCHIBALD RAYMOND
IPC: G21D5/02
Filed: 1962-12-06
Abstract: 1,024,019. Electric selective signalling. DOBBIE McINNES (ELECTRONICS) Ltd. Dec. 4, 1963 [Dec. 6, 1962], No. 46059/62. Heading G4H. [Also in Division G1] Apparatus for reading and recording positions and/or the shapes of lines on a chart comprises a manually-movable index 15, and sensing means 13 producing a signal dependent on the relative position of index and sensing means, the signal controlling movement of the sensing means. In the particular embodiment, a piece of magnetic material wrapped in a coil 16 energized from an A.C. supply 17 serves as the index 15 and induces currents in four sensing coils 13 mounted on a trolley underneath the table 10 on which the chart is placed. The trolley is driven along a gantry and the gantry itself driven in a perpendicular direction, by motors 12 each controlled by the currents from a pair of sensing coils 13. The x and y coordinates of the position of the trolley are expressed as analogue voltages by potentiometers 30 to control a recording plotter 31, and also converted to digital form by digitizers 19 and stored at 21. The stored data is transferred to punched tape or cards, or magnetic tape, at 20, either when the operator closes a switch 23 or at regular intervals. A lamp indicates whenever the trolley is directly under the index 15. Alternatively a reading of the x co-ordinate may be effected every time the tens-digit of the y co-ordinate changes. The index 15 may be a permanent magnet or a flat disc with cross hairs. The energizing coil 16 may be mounted on the trolley, the index 15 merely altering the reluctance of the magnetic circuit in accordance with its position. Capacitive and optical sensing are mentioned. An automatic switch may prevent data output except when the index 15 is in contact with the reading surface. The chart may be moved past the operator at a variable speed. The data may be transmitted to a distance to copy a drawing or to repeat a drawing as it is being drawn. Modifications may be transmitted back. The signals may represent polar coordinates. A subsidiary energizing coil may be provided in the index 15 with a corresponding detecting device on a servo-driven turntable carried on the trolley along with the sensing coils 13, with means for reading out the angular position of the turntable in analogue or digital form: thus angles (selected by orienting the index 15) may be transmitted.
Patent GB-1131314-A (GB)
Title: Improvements in arrangements providing power-transmission means for use alternatively with conventional driving power-transmission means in tractors
IPC: F15B11/17
Filed: 1966-10-17
Abstract: 1,131,314. Tractor driving gear. VALMET OY. 17 Oct., 1966 [7 Feb., 1966], No. 46265/66. Heading B7H. [Also in Division F2] An arrangement providing hydro-mechanical drive for use alternatively with conventional mechanical drive in a tractor comprises an hydraulic motor 3 energized by a pump 2 driven by the tractor engine, and a selector element 15 slidable, by control linkage, not shown, between alternative drive positions, viz.: (a) in which it connects the hydraulic motor via a reduction gear train 9, 11, 12, 16 to the input shaft 14 of the conventional change speed gear-box 13 for tractor speeds substantially less than normal, and (b) in which it connects the engine, via the conventional main clutch 18, directly to the input shaft 14 for normal tractor speeds. The selector element 15 is rotationally fast with but axially slidable on the input shaft 14 and comprises the externally toothed gear-wheel 16 engageable with the pinion 12 of the reduction gear train and an internally toothed clutch member 17 engageable with a clutch member 20 fast with the output shaft from the main clutch 18. The pump 2 may be the conventional pump of a tractor hydraulic lifting equipment and/or power take-off. In Fig. 3 (not shown), a known proportional flow distributer valve (22) directs a proportion of the oil from the pump 2 to the motor 3, the remaining oil being directed to the hydraulic lifting equipment of the tractor, this arrangement providing for simultaneous use of the motor 3 and the lifting equipment. The oil to the motor 3 is controlled by a threeposition four-way valve (25) for Forward, Reverse or Neutral. A pressure relief valve (30) preceding the valve (25) limits hydraulic motor torque to protect the gear-box 13 and the tractor tyres.
Patent GB-1435288-A (GB)
Title: Process for treatment of lateritic ores
IPC: C22B23/02
Filed: 1974-10-25
Abstract: 1435288 Reducing nickel ores INTERNATIONAL NICKEL CO OF CANADA Ltd 25 Oct 1974 [5 Nov 1973] 46303/74 Heading C7D Ferronickel particles are produced from nickeliferous lateritic ores by (a) agglomerating the fine ore with a compound of an alkali metal or alkaline earth metal (not Mg) as a flux, and a reducing agent consisting of or including a liquid hydrocarbon, (b) forming a bed of the agglomerates on a movable hearth and heating the agglomerates to partially melt them and to reduce Ni values to Ni to produce Fe-Ni particles after subsequent crushing. The reducing agent is in amount not exceeding 12 wt per cent of the ore and the hydrocarbon is at least 1 wt per cent of the ore. The agglomerate may contain a sulphur-bearing compound e.g. pyrites, pyrrhotite, S, Na 2 SO 4 , CaSO 4 . Suitable fluxes are KCl, NaCl, Na 2 SO 4 , CaO, CaF 2 , CaCO 3 , CaSO 4  and CaCl 2 . The agglomerates are heated to at least 1200C, 1250-1325C, and the product may also include Co if present in the ore.
Patent GB-1372187-A (GB)
Title: Article receiving devices
IPC: A47G29/28
Filed: 1971-10-25
Abstract: 1372187 Article delivery receptacles R W ROSE 25 Oct 1971 [30 Sept 1970] 46458/70 Heading A4T A receiving device for articles e.g. milk bottles, comprises an aperture 12, Fig.1, e.g. in a door 10, a hinged spring-loaded flap 22 normally closing the aperture, a basket 28 hinged at 34 behind the aperture and biased by spring 36 in a clockwise direction, and an interlock between the flap and basket to prevent opening of the flap when a bottle is in the basket resting on a buffer spring 32. As the weight of a bottle swings the basket and a buffer 38 on the door, spring 26 moves the flap past a lip 40 carried at the top of the basket, and as the basket moves slightly clockwise from the door, the lip is positioned behind the closed flap as in Fig.4. In the embodiment of Fig.4, the bottom of basket 28 is removed and a second basket 44, having a thick rubber flap 50 at its mouth, is supported at 46 below the first basket. A first bottle falls through the first basket and flap 50, and a second bottle enters the first basket resting on flap 50 as a buffer, after which the aperture flap is locked closed. The basket 28 is removably hinged and the aperture flap may be locked by a lever device.
Patent GB-1196257-A (GB)
Title: Improvements in or relating to Oral Hygiene Apparatus
IPC: A61C1/00
Filed: 1967-08-24
Abstract: 1,196,257. Teeth cleaning devices. AQUA TEC CORP. 24 Aug., 1967 [8 Sept., 1966], No. 46501/69. Divided out of 1,196,256. Heading A5R. [Also in Division F1] The apparatus disclosed is substantially identical to that disclosed in Specification 1,196,255 and 1,196,256, but the claims are directed towards a device for producing a pulsating stream of liquid comprising a housing containing a motor driven pump with a reservoir removably mounted upon the housing, an inlet of the pump being connected by a conduit to an outlet of the reservoir, which outlet includes a valve operable to prevent flow of liquid from the reservoir.
Patent GB-1049985-A (GB)
Title: Aryl diisothiocyanates and diamines
IPC: C07C331/24
Filed: 1965-11-03
Abstract: Diolefines of formula R4R3C=CR1-Ar-CR1=CR3R4 wherein R1 and R2 are C1-6 alkyl, R3 and R4 are H or C1-6 alkyl and Ar is arylene (optionally substituted by C1-6 alkyl) are made by reacting Ar(COR1)2 with R4R3CH-Mg-halide, converting the diol formed to the dichloride and dehydrochlorinating the latter with pyridine. A number of diolefines are specified in which Ar is derived from benzene, naphthalene, biphenyl and terphenyls.ALSO:The invention comprises compounds of formula <FORM:1049985/C2/1> whereinin Q is -NCS or -NH2, R1 and R2 are C1- 6 alkyl, R3 and R4 are H or C1- 6 alkyl and Ar is arylene which may be substituted by F, Cl, Br or C1- 6 alkyl or alkoxy.  The compounds in which Q is -NCS are made by reacting thiocyuric acid with an olefin R4R3C = CR1-Ar-CR2 = CR3R4; those in which Q is -NH2 are made by reacting starting materials (I, Q = -NCS or -NCO) with alkali or the halogen analogues (I, Q = halogen) with, e.g. liquid NH3.  Preferred products are those in which Ar is p-phenylene, R1 and R2 are Me and R3 and R4 are H, but a number of other products are specified.  The diamines may be phosgenated in the corresponding diisocyanates; the diisothiocyanates may be hydrolysed (e.g. with aqpyridine) to the corresponding diols.ALSO:Polyamides are prepared by reacting with dibasic organic acid chlorides, diamines of formula <FORM:1049985/C3/1> wherein R1 and R2 are C1-6 alkyl, R3 and R4 are H or C1-6 alkyl and Ar is arylene which may be substituted by F, Cl, Br or C1-6 alkyl or alkoxy.  Thus, a polyamide is made by interfacial polymerization between sebacyl chloride/CHCl3 and the diamine in which Ar = p - phenylene, R1 = R2 = CH3 and R3 = R4 = H in aqueous solution containing NaOH.
Patent GB-1401747-A (GB)
Title: Process for the manufacture of odorant and flavouring compos itions
IPC: A23L27/20
Filed: 1973-10-09
Abstract: 1401747 Flavourings L GIVAUDAN & CIE SA 9 Oct 1973 [10 Oct 1972] 47086/73 Heading A2B [Also in Division A5] A flavouring or aromatising composition comprises an aldehyde of formula together with citral. In the formula either R 1  is hydrogen and R 2  is isopropylidene or isopropenyl, or R 1  and R 2  together are dimethylmethylene. The aldehydes are 2-formyl-1-isopropenyl-3-methyl-cyclopentane (photocitral A), 1, 6, 6-trimethyl-bicyclo(21.1.)hexane-2- aldehyde (photocitral B) and 2-formyl-1-isopropylidene-3-methyl-cyclopentane, and their stereoisomers. The composition can be used in yoghurt, puddings, sweets, ices and beverages, and may be in-liquid, paste or powder form.
Patent GB-1386339-A (GB)
Title: Combiner network
IPC: H03H7/48
Filed: 1972-10-13
Abstract: 1386339 RF couplings NAUTICAL ELECTRONICS LABORATORIES Ltd 13 Oct 1972 1972 [2 Nov 1971] 47456/72 Heading H4A A combiner network for two synchronous sources comprises a single transformer having first and second windings one end of each of which is connected to a respective input port, and the other ends of which are connected to an output port. The windings are connected with mutually opposing directions of current flow, and under rated operating conditions the net flux in the transformer core is zero. Dissipative means is coupled across at least one of the windings, and is operative if there is a departure from the zero flux condition. As shown in Fig. 3 the feed sources are connected to respective input ports 18, 19 and a load R L  is connected to an output port 21. The dissipative means is a resistor R D  which is connected across one winding 32 of the transformer 30. In another embodiment a resistor is connected across a tertiary winding of the transformer (Fig. 2, not shown). In a third embodiment, dissipation is provided by using a material with high losses for the transformer core.
Patent GB-1499219-A (GB)
Title: Optical fibre connectors and splices
IPC: G02B6/38
Filed: 1975-11-20
Abstract: 1499219 Optic fibre connectors STANDARD TELEPHONES & CABLES Ltd 16 Nov 1976 [20 Nov 1975] 47763/75 Heading G2J Fibres, or bundles of fibres, having a cylindrical reference surface are butt-jointed to a second fibre or fibre bundle having a reference surface of the same diameter by a helix of flat resilient material, preferably oppositely handed as shown. The helix is slightly undersized and is unwound to expand it so that the fibres can be inserted.
Patent GB-478580-A (GB)
Abstract: 478,580. Cash registers. NATIONAL CASH REGISTER CO. July 20, 1936, No. 20046. Convention date, July 29, 1935. [Class 106 (i)] Divided bank keyboards ; differential mechanism. A cash register or similar accounting- machine has a number of differential latches arranged in the same plane and driven by a single driver, each latch being adapted to co-operate with one group of a number of groups of keys contained in a single bank. The invention is described as applied to a machine of the kind described in Specification 176,781, [Class 106 (i)], having clerks' keys 40 and transaction keys 41 situated in the same bank, the clerks' keys being adapted to break a latch 58 and the transaction key a latch 62. The latches are now arranged in the same vertical plane and are carried by differential arms 53, 54 mounted side by side on a hub 55. The latches co-operate with shoulders 64, 65 on a driver 52 rocked in usual manner by cams 66, 67 on the main shaft. If no clerks' key is depressed, the differential arm 53 moves to maximum extent, but if no transaction key is depressed the associated differential arm 54 is arrested in usual manner by a zero stop pawl 85. The uppermost key in the transaction group is provided with a short stem in order to avoid obstruction of the clerks' latch 58. Depression of this key merely disables the zero stop pawl to allow the differential arm 54 to rock until arrested by a fixed stop 93 in alignment with the key. The differential arms are connected through the usual minimum movement devices to totalizer-selecting, printing and indicating mechanisms such as are described in Specifications 8119/15, 192,082, and 199,046, [all in Class 106 (i)], respectively.